Garage Door Paint in Temecula Heat

The door is supposed to hold its finish. Often the lower panels start to flake after one hot summer. Painting a garage door in Temecula, CA takes more planning than the size suggests, and the breakdown sitting on painting temecula ca prime focus lab lists the steps in the order a crew actually works them.

Steel and wood behave differently

A steel door expands and contracts with surface temperature, and on a west facing driveway the panels can get too hot to touch by midafternoon. Paint applied to a hot panel skins over too fast and does not level. Wood panels move with humidity instead, so the seams and the lower edge open and close through the year. Each material wants its own primer and its own timing.

Dark colors in the sun

A dark color on a south or west door soaks up heat. That extra heat stresses the film and can warp thin steel skins, and foam backed doors can soften under a very dark finish. Mid tone and light colors reflect more, and most door makers publish a light reflectance limit for their warranty. Checking that before choosing a color avoids a repaint in two years.

Flaking at the lower edge

The bottom rail takes the worst of the damage. Sprinkler spray, wet concrete, and a rubber seal that holds moisture against the paint all work on it. Scrape back anything loose, feather the edges with sanding, and prime bare metal or bare wood before coating. A patch of spackle or exterior filler fills dents and dings, and a thin bead of caulk at wood panel joints keeps water out.

Prep and primer

Wash the door with a degreaser, rinse, and let it dry. Scuff sand the old sheen so the new coat bonds, and wipe the dust off. Steel gets a bonding primer, and raw wood gets an oil based primer or a stain blocker. Masking the weather seal, the hinges and the opener hardware takes longer than the painting, and it is what separates a clean finish from a messy one.

Applying the topcoat

A roller with a short nap and a brush for the recessed panels give an even finish, and a sprayer works if the cars and the house are covered. Use an acrylic latex or an enamel made for exterior doors, in satin or semi gloss. Two coats give the coverage a door needs. Leave the door half open between coats so the edges do not stick to the weather stripping.

The weather window

Early morning or evening, when the door is in shade and the surface is below the temperature limit on the can, gives the best result. Santa Ana wind days blow dust into wet paint, so those are best skipped.